Green’s Dictionary of Slang

(S.Afr.) crazy.

1962		A. La Guma Walk in the Night (1968) 43: Maybe I ought to go and tell them. Bedonerd. You know what the law will do to you. They don’t have any shit from us brown people.
1969		A. Fugard Boesman and Lena Act I: Sugar’s not enough man. I want some real sweetness. Then you can be as bedonnerd as you like.
1977		P.-D. Uys Paradise is Closing Down in Gray Theatre One (1978) 141: anna: Down? Do I look down? molly: Sort of bedonnerd, yes.
1985		Frontline Aug. 54: Guys who spend long enough living in the bush end up bedonderd, but that’s just normal army befok, it’s not bossies like from war.
1990		R. Gool Cape Town Coolie 2: ‘These people [....] are mad!’ – He used the colloquial word, bedonderd.